Previously Rule 1 only created chunks from ASRX segments, merging OCR
text where frame ranges overlapped. OCR text that didn't overlap with
any ASRX segment was ignored.
Now Rule 1 has two phases:
1. Process ASRX segments (merge OCR where overlapping) - existing behavior
2. Create chunks for OCR-only text (frames not covered by ASRX)
OCR-only chunks are grouped by consecutive frames (within 5 frames)
to avoid creating too many single-frame chunks.
Example: ASRX 819 + OCR-only 4 = 823 sentence chunks
Accusys
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